Data Science and Machine Learning
Data Science
Data Science combines computer science, statistics, and information science. Data Science combines computer science, statistics, and information science. Used for machine learning, AI, statistics, operations research, or IoT
Data science examples
Mobile Companies - predict when a customer will leave for another provider. They collect billing info, customer service interactions, and website visits to create a probability leave score. Then target offers and incentives for high risk scores. E-commerce - cross selling ads and products. "People who viewed X product also liked this" or recently visited sites products ads appearing on social media/news/banking sites. Smart Homes - directing power and heating costs to be active when users are most likely to be home
Semi structured data
Product names SKU's Titles, Street addresses Email addresses
Structured data
Zip Codes Click-data transactions
Unstructured data
any information that does not lend itself into any structured model often used in text analytics, data mining, or finding data patterns where none are readily apparent, also called "Big Data." Posts Texts Email Content Video Audio
Data scientist or a Big Data Engineer or Machine Learning Engineer
creates a code to model, analyze, and/or predict patterns. Coding Experience: SAS, R, SQL & Python for NoSQL Used for machine learning, AI, statistics, operations research, or IoT
Data mining
data mining is your information that is being gone through similar to ML by discovering patterns given by a programmer (supervised learning) but also recognizes and simplifies patterns not given by the programmer adjusting the code accordingly (unsupervised learning).
unsupervised learning
explicitly programmed to find something or do something
Supervised learning
programming to do something- step by step directions ie. finding patterns given by the programmer think sorting recycling
Machine learning
the ability of a computer to figure out the "correct" action without being explicitly programmed. Finding uncommon patterns Helpful with predictive analytics ie. cell phone ending contract Helpful with predictive analytics.
Unicorn or purple squirrel
where computer science, math & statistics & subject matter expertise